Understanding the IQ Bell Curve
Understanding your IQ score starts with the concept of the 'Bell Curve,' a common way to represent IQ scores statistically. Imagine a graph where most people's IQ scores fall in the middle range, creating the highest point or 'peak' of the curve. As we move towards higher or lower scores, fewer people fall into these categories, making the curve taper off at both ends. This is why it's called a bell curve – it resembles the shape of a bell.
In this model, the average IQ is set at 100. About 68% of the population scores between 85 and 115, which is considered average intelligence. Scores above 115 are seen as above average, with those above 130 often classified as 'gifted.' Conversely, scores below 85 are considered below average.